JPH11107606A - Full-open locking device of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability by using an economical means which can release both a door lock and a full-open lock using one door handle. SOLUTION: A first locking plate 22 for regulating the rotation of a latch 21 is made operable in conjunction with a door handle through a release lever 26. A hold lever 25 is provided to restrict the rotation of a second locking plate 24 provided coaxially and integrally with the plate 22 from a lock position to an unlock position. And the lever 25 has a construction such that immediately before a sliding door is fully opened, the locking plates 22, 24 are turned to a non-hold position, where the plates 22, 24 are not held at an unlock position by an input protrusion 16 provided in a lower guide rail 5. A stopper piece 24a is provided on the plate 24 to prevent the lever 25 from turning from the non-hold position to the hold position when the lever 25 is positioned at a lock position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully-open lock device that is engaged when a slide door is fully opened so as not to slide in the closing direction.

[0002]

2. Description of the Related Art Conventionally, as a lock device for fully opening a slide door, a checker type device that holds a slide door at a fully open position by a check force by a spring (for example, see Japanese Utility Model Application Laid-Open No. 64-57278), 2. Description of the Related Art A lock-type device that restrains a slide door at a fully open position by an engagement means (for example, see Japanese Utility Model Publication No. Sho 58-30925) is known. The former checker system has a simple structure and is inexpensive, but on the other hand, the check force varies due to the spring resilience and the mounting position, and the sliding door closes even on a downhill. Since it is necessary to set the check force so that the slide door does not slide, a large opening operation force is required when the slide door gets over the spring. In view of this, a lock type full-open lock device has been invented to ensure that the slide door can be restrained so as not to close and slide even on a downhill and that the opening operation force of the slide door does not increase. In this lock type full-open lock device, basically, a second engagement means (latch) that engages with a first engagement means (strike) provided on the vehicle body side is provided on the slide door side. The two engaging means are provided in a positional relationship to be engaged when the sliding door is slid to the fully open position, and the second engaging means is connected to an unlocking means for releasing the engagement. ing. As a means for operating the unlocking means, a handle lever such as a door handle for unlocking a door is used.

[0003]

As described above, the lock type full-open lock device of the related art is superior in terms of restraint performance as compared with the checker type lock device. Was desired. In the above-mentioned prior art, the engagement means is configured to be disengaged in conjunction with the operation of the handle lever. The handle lever is generally provided in a slide door for performing an operation of releasing a door lock (the lock is a lock that is locked when the slide door is closed) when the slide door is opened. Some use a door handle, and some additionally provide a handle lever for releasing the full-open lock that operates in the closing direction of the slide door. In the latter technique, that is, in a configuration in which a handle lever that operates in the closing direction of the slide door is separately provided, the door is slid in the same direction as the operation direction while operating the handle lever, so that the operability is excellent. As the number of parts increases and the movement of each member becomes complicated, the cost increases. On the other hand, in the former technique, that is, in a configuration in which a commonly used door handle for releasing a door lock is shared for releasing a fully-open lock, although the number of parts is small and the cost is advantageous, the door handle can be used. The sliding door is slid in the closing direction while performing the unlocking operation in the opening direction of the sliding door, and the operating directions of the two doors are different from each other, resulting in poor operability. When the weight of the sliding door is applied to both engagement parts, it is necessary to slide the sliding door in the opposite direction to the operating direction while operating the door handle against the load due to this weight, and the operability is increased. Is worse. The present invention has been made in view of the above-mentioned conventional problems, and has a structure using a cost-effective means capable of releasing a door lock and a full-open lock with one door handle. It is intended to improve operability.

[0004]

Means for Solving the Problems In order to achieve the above-mentioned object, a full-open lock device for a slide door according to the present invention comprises a slide door that opens and closes an opening formed on a side surface of a vehicle body.
A latch that is slidably supported by a guide rail and has a latch that engages with a striker fixed to the vehicle body when the sliding door is slid to a fully opened position where the opening is fully opened, thereby restricting sliding of the sliding door. The latch is rotatably mounted in a range between a latch position where the striker is engaged and an unlatch position where the engagement with the striker is released. A locking plate that is biased to rotate in the direction of the position and is provided at a position near the latch of the slide door to engage with the latch at the latch position and restrict the latch from rotating in the unlatch position direction, The locking plate is rotatably supported between a locked position where the latch is engaged and an unlocked position where the latch is not engaged, and While being biased by the urging means in the direction of the lock position, the door is unlocked when the door handle is unlocked by being interlocked with a door handle for unlocking the door provided on the side surface of the slide door. The hold lever is rotatably supported at a position near the locking plate of the slide door and movable near the guide rail when the slide door slides. The lever is provided with a holding claw that engages with the locking plate to restrict the locking plate from returning from the unlock position to the locking position, and that the holding claw engages with the locking plate and returns to the locking position. And the return position returns to the lock position without engaging the locking claw with the locking plate. Provided rotatably within the range of the unfolded position that can not regulate the,
Further, the holding lever is rotated and biased in the direction of the hold position by the biasing means. A stopper piece for restricting rotation from the lock position to the hold position is provided, and the guide rail collides with the hold lever at a position slightly closer to the closing direction than the fully open position of the slide door to hold the hold lever. The input projection is provided for rotating from the position to the unhold position. According to a second aspect of the present invention, in the lock device for a fully opened slide door according to the first aspect, the input convex portion and the striker are provided at a rear end of a lower guide rail extending along a lower edge of the opening. The latch, the locking plate, and the hold lever are provided on a lower roller bracket attached to a slide door, supporting a roller that rolls on the lower guide rail. According to a third aspect of the present invention, in the slide door fully open lock device according to the second aspect, the lower roller bracket includes only a bracket fixed to the slide door, and the locking plate is a wire that is interlocked with the door handle. Characterized by being connected to According to a fourth aspect of the present invention, in the slide door fully open lock device according to the second aspect, the lower roller bracket is rotatable in a horizontal direction with respect to the first bracket fixed to the vehicle body and the first bracket. And a second bracket mounted on the first bracket to support the roller, wherein the latch, the locking plate, and the hold lever are supported by the first bracket, and the second bracket unlocks the locking plate from a locked position. A release lever rotatable to a position is rotatably supported, and the release lever is connected to a wire interlocking with the door handle lever, and is interlocked with a door handle unlocking operation of the door handle. Pivots to move the locking plate from the locked position to the unlocked position. Made is characterized in that is. According to a fifth aspect of the present invention, in the slide door full-open lock device according to the fourth aspect, the latch and the hold lever are arranged at different heights, and the locking plate includes a first locking plate that engages with the latch. A second locking plate integrally formed coaxially with the first locking plate and arranged so as to be engageable with the hold lever, and provided with the stopper piece. One locking plate is rotatably arranged.

[0005]

According to the present invention, when the slide door is opened and slid from the fully closed state, the door handle is opened to unlock the door lock, and the slide door is slid backward. Immediately before the sliding door reaches the fully open position, the hold lever collides with the input projection provided on the guide rail and rotates from the hold position to the unhold position, and accordingly, there is no rotation restriction on the locking plate. The locking plate is rotated to the lock position by the urging force of the urging means. When the input lever crosses the input convex portion, the hold lever attempts to return from the unhold position to the hold position by the urging force of the urging means, but the hold claw collides with the stopper piece of the locking plate at the lock position to move to the hold position. Return is regulated. Therefore, the locking plate is held in the locked position. Almost simultaneously with the above operation, the slide door reaches the fully opened position, the latch engages with the striker, and rotates from the unlatched position to the latched position. Then, the latch engages with the locking plate arranged at the lock position, whereby the latch is held at the latch position, the engagement state with the striker is maintained, and the slide door is maintained at the fully open state. Therefore, even if the latch and the striker are maintained in the engaged state, and the vehicle is stopped on the downward slope, the slide door is held at the fully open position, and the slide door does not close and slide due to its weight.

Next, when closing the slide door, the door handle is opened once. In conjunction with this opening operation, the locking plate rotates from the locked position to the unlocked position, and accordingly, the abutment between the hold claw of the hold lever and the stopper piece of the locking plate is released, and the hold lever is biased by the urging means. Is pivoted to the hold position by the urging force of. Therefore, after one opening operation of the door handle is completed, the locking plate tries to rotate from the unlocked position to the locked position by the urging force of the urging means. At this time, the hold lever is held. Since the lock plate is disposed at the position, the rotation of the locking plate in the lock position direction is regulated by the hold claw of the hold lever, and the locking plate is held at the unlock position. Therefore, there is no restriction on the latch, and when the slide door is slid from the fully open position, the slide restriction by the latch and the striker does not work, and the engagement between the two is released. Also, at the time when the slide door is slid slightly from the fully open position in the closing direction, the hold lever collides with the input convex portion provided on the guide rail and rotates from the hold position to the unhold position. The rotation of the locking plate by the holding claw is no longer restricted, and the locking plate returns from the unlocked position to the locked position. Therefore, even if the hold lever attempts to return from the unhold position to the hold position beyond the input projection, the hold claw hits the stopper piece and the return to the hold position is restricted. The state in which the hold claw abuts against the stopper piece and the return of the hold lever to the hold position is restricted is maintained until the next time the door handle is opened.

According to the third aspect of the invention, when the opening operation of the door handle is performed, the locking plate is rotated from the locked position to the unlocked position directly in conjunction with the wire. Further, in the inventions described in claims 4 and 5, the main configuration of the present apparatus and the lower roller bracket provided with the rollers are constituted by the first bracket and the second bracket. By rotating the second bracket, the angle of the roller that rolls on the lower guide rail with respect to the slide door can be changed, and the load when the slide door slides can be reduced. Further, in the present invention, the interlocking relationship between the door handle and the locking plate is configured as an indirect interlocking relationship via a release lever between the door handle and the first bracket and the second bracket. Even if the relative positional relationship between the second bracket provided with the locking plate and the sliding door body provided with the door handle changes, the locking plate is not operated by this displacement. That is, the first bracket is provided with a release lever that is connected to the wire and directly interlocks with the door handle. When the door handle is opened, the release lever rotates, thereby moving the locking plate from the locked position. Move to unlock position.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In describing the embodiment, first, a first embodiment corresponding to the invention described in claim 5 will be described.
Will be described.

(Embodiment 1) FIG. 2 is a perspective view showing a vehicle to which the present embodiment is applied, and a slide door 2 is slidably attached to a side surface of a vehicle body 1. That is, an opening 3 is provided on a side surface of the vehicle body 1, an upper guide rail 4 and a lower guide rail 5 extend along the upper edge and the lower edge of the opening 3, and the rear side of the opening 3 A rear guide rail 6 extends on the panel. An upper roller (not shown), a lower roller 7 (see FIG. 1), and a rear roller (not shown), which are configured to roll along the guide rails 4, 5, and 6, respectively, are provided at the front end of the slide door 2. The sliding door 2 is slidable back and forth with respect to the vehicle body 1 so that the opening 3 can be opened and closed. Each roller is supported by an upper roller bracket 11, a lower roller bracket 12, and a rear roller bracket 13, respectively. Each of the guide rails 4, 5, and 6 is curved toward the inside of the vehicle at the front end, and is configured to displace in the vehicle width direction in the vehicle width direction immediately before the slide door 2 is fully closed.

The rear pillar 8, which constitutes the rear edge of the opening 3, is provided with a door lock (not shown) which engages when the slide door 2 is fully closed. A door handle 9 is provided at the front end of the slide door 2 for releasing the engagement of the slide door 2, that is, for releasing the lock. Incidentally, the unlocking operation of the door handle 9 is an operation of displacing the door handle 9 toward the rear of the vehicle.

As shown in the perspective view of FIG. 1, the lock device for fully opening the slide door 2 according to the present embodiment is provided on the lower roller bracket 12 and the lower guide rail 5. In describing these, first, the lower roller bracket 12 and the lower guide rail 5 will be described.

The lower guide rail 5 has a substantially C-shaped channel structure as shown in the figure, and has a flange 5a hanging downward from an upper end edge. A striker 14 is fixed to the rear end of the lower guide rail 5, and a rubber stopper 15 is provided slightly forward of the striker 14. The stopper 15 restricts the collision of a later-described stopper arm 123 (see FIG. 4) when the slide door 2 is slid to the fully open position, and slides rearward.

Further, at a position slightly forward of the stopper 15, an input convex portion 16 having a convex shape in the vehicle exterior direction is provided on the upper edge of the lower guide rail 5. As shown in FIG. 3, which is a cross-sectional view taken along line S3-S3 in FIG. 1, the input convex portion 16 projects outward by a dimension t from the surface of the flange 5a.

Next, the lower roller bracket 12 will be described.
Is a so-called swing type, the base end of which is a sliding door 2
And a second bracket 12 rotatably attached to the distal end of the first bracket 121 and rotatably mounted with the lower roller 7.
2 is provided. The lower roller 7 rolls on the bottom surface of the lower guide rail 5 to support a vertical load, and one radial roller 7a is provided before and after the radial roller 7a. It is composed of three rollers, thrust rollers 7b and 7b, which regulate the horizontal movement by rolling between the rear wall and the flange 5a.

The first bracket 121 is attached to the slide door 2 and fixed to the vertical piece 12 by bolts (not shown).
a and a horizontal piece 12b extending horizontally from the lower end of the vertical piece 12a.

The second bracket 122 is rotatably attached to a distal end of the first bracket 121 by a pin 12c, and a base end attached by the pin 12c sandwiches the horizontal piece 12b up and down. As described above, the parallel plates 12d and 12e are provided on the upper and lower sides. A detent stopper 17 is provided at the tip of the horizontal piece 12b to restrict the second bracket 122 from rotating in the direction of arrow a at a predetermined position. The upper parallel plate 12d
The latch 21 is attached to the striker 14 so as to be rotatable about a pin 21a at a height at which the latch 21 is engaged with a substantially central portion of the striker 14.

That is, the latch 21 is arranged as shown in FIG.
(E) As shown in (f), at a position where the open portion of the engagement hole 21b faces rearward (hereinafter, referred to as an unlatched position), the striker 14 can freely enter and exit the engagement hole 21b. As shown in (b), (c), and (d) of the same figure, when the open portion faces upward in the figure (hereinafter referred to as a latch position), the engagement hole 21b and the striker 14 are engaged. In addition, the sliding of the sliding door 2 can be restricted. The latch 21 is urged clockwise by a return spring 21c to return to the unlatched position shown in FIG.

Returning to FIG. 1, the engagement hole 21 of the latch 21
The engagement piece 21 is provided at the end opposite to the side where the b is provided.
d is hung down, and engages with the engagement piece 21 d to
The first locking plate 22 capable of restricting the return of the to the unlatched position is rotatably supported on the parallel plate 12d about the pin 22a. That is, the first locking plate 22a is formed in a substantially U-shape, is rotatably supported about the pin 22a at the center, and is engaged with the latch 21 near one end. Piece 21d
A notch portion 22b is formed, and a return spring 23 for urging the first locking plate 22 to rotate in the direction of arrow b is provided between the notch portion 22b and the parallel plate 12d. On the other hand, the engaging pin 22c is hung from the other end of the first locking plate 22 until it comes close to the horizontal piece 12b.

A base end of a second locking plate 24 located above the parallel plate 12d is integrally connected to a pin 22a serving as a center of rotation of the first locking plate 22. That is, the second locking plate 24 rotates synchronously with the first locking plate 22. A stopper piece 24a is provided upright at the tip of the second locking plate 24.

A hold lever 25 is rotatably supported above the parallel plate 12d with one end facing the stopper piece 24a. That is, the hold lever 25
Has a substantially U-shape, a central portion is rotatably supported by the parallel plate 12d by a pin 25a, and a hook claw 25b bent in a hook shape is provided at one end. The other end of the hold lever 25 is provided with the sensor roller 2.
5c is provided. Also, this hold lever 25
A return spring 25d
Is provided, and the hold lever 25 is urged to rotate in a counterclockwise direction which is the direction of arrow c in FIG. That is, the sensor roller 25c is disposed at a position (hereinafter, referred to as a hold position) in which the sensor roller 25c approaches or comes into contact with the surface of the flange 5a of the lower guide rail 5 by the rotational bias of the return spring 25d. When the slide roller 2 is slid to the vicinity of the fully open position and the sensor roller 25c comes into contact with the input convex portion 16, as shown in FIG. , Whereby the hold lever 25 is moved to the return spring 25d.
Is rotated in the direction opposite to the arrow c against the urging force of the above, and this position is referred to as an unhold position in this specification.

On the horizontal piece 12b, a release lever 26 is located near the first locking plate 22.
Is provided. The release lever 26 is formed in a substantially “C” shape with a gentle angle as shown in the figure.
The central part is attached rotatably around the pin 26a,
One end of the engaging pin 2 of the first locking plate 22
2c so as to be able to engage in the horizontal direction. On the other hand, the other end is connected to the door handle 9 via a wire 27. That is, the release lever 26 is biased by the biasing force of the return spring 26b in a direction in which one end is separated from the engagement pin 22c of the first locking plate 22, that is, counterclockwise. When the opening operation is performed, the other end of the release lever 26 is pulled by the wire 27 and rotated against the urging force of the return spring 26b to rotate the first locking plate 22 to the unlock position. Have been.

Next, the operation of the first embodiment will be described. (A) Opening from Fully Closed To slide the slide door 2 from the fully closed state to the open state, the door handle 9 is opened to unlock the door lock, and the door handle 9 is further opened in the opening direction. When the force is continuously applied, the slide door 2 slides backward. At this time, in the fully open lock device, when the door handle 9 is opened, the state shown in FIG.
6 is rotated to first rotate the first locking plate 22 to the unlocked position.
The tip of the hold claw 25b is the second locking plate 2
4 is released, and the hold lever 25 is turned from the unhold position to the hold position by the urging force of the return spring 25d. Therefore, while the sliding door 2 is being slid, the second locking plate 24 is engaged with the holding claw 25b, as shown in FIG. 4D, and the first locking plate 22 is held at the unlock position. You.

Thereafter, when the slide door 2 reaches just before the fully open position, the sensor roller 25c of the hold lever 25 collides with the input convex portion 16 provided on the lower guide rail 5, as shown in FIG. From the hold position to the unhold position, the rotation of the second locking plate 24 is no longer restricted.
Locking plates 22 and 24 are return spring 2
By the urging force of No. 3, it turns to the lock position (counterclockwise). When the sensor roller 25c exceeds the input convex portion 16, the hold lever 25 is moved to the return spring 25.
4A, the urging force d attempts to return from the unhold position to the hold position. However, as shown in FIG.
5b is the second locking plate 24 in the locked position.
And the return to the hold position is restricted. Therefore, the first and second locking plates 22, 24 are held in the locked position.

At the same time as the above operation, the latch 21 and the striker 14 are engaged, and the latch 21 is rotated to the latch position against the urging force of the return spring 21c.
The latch 21 engages with the notch 22b of the first locking plate 22 disposed at the lock position,
As a result, the latch 21 is held at the latch position, and the engagement state with the striker 14 is maintained.

Then, as shown in FIG. 4C, the stopper arm 123 collides with the stopper 15, the slide door 2 reaches the fully open position, and the latch 21 and the striker 14
, The slide door 2 is held at the fully opened position. Therefore, even if the vehicle is parked on a downhill slope that falls forward, the slide door 2 is kept at the fully open position, and the slide door 2 does not slide in the closing direction due to its weight or the like.

(B) Closing from Fully Open Next, when closing the slide door 2 from the fully open position,
The opening operation of the door handle 9 is performed once. In conjunction with this opening operation, the release lever 26 is moved by an arrow e in FIG.
And the first and second locking plates 2 are engaged with the engaging pins 22 c of the first locking plate 22.
2 and 24 rotate from the locked position to the unlocked position against the urging force of the return spring 23. Therefore,
The contact of the tip of the hold claw 25b of the hold lever 25 with the stopper piece 24a of the second locking plate 24 is released, and the hold lever 25 is rotated to the hold position by the urging force of the return spring 25d. Accordingly, after one opening operation of the door handle 9, the first locking plate 22 returns from the unlock position to the lock position as the release lever 26 returns to the original position by the urging force of the return spring 26b. At this time, since the second locking plate 24 is engaged with the hold claw 25b of the hold lever 25 at this time,
The first and second locking levers 22, 24 are held at the unlocked position.

Therefore, there is no restriction on the latch 21, and the slide door 2 can be closed and slid from the fully open position. Here, when the slide door 2 is slid in the closing direction, as shown in FIG.
Is rotated to the unlatched position, and the striker 14 is
Exit from 1b.

When the slide door 2 slides slightly from the fully open position in the closing direction, the hold lever 25
The sensor roller 25c collides with the input convex portion 16 of the lower guide rail 5, and the hold lever 25 rotates from the hold position to the unhold position, with the result that the hold claw 25b rotates with respect to the second locking plate 24. The restriction is removed and the first and second locking plates 2
2, 24 return from the unlocked position to the locked position. Therefore, even if the hold lever 25 attempts to return to the hold position from the unhold position after the input convex portion 16 has been passed, as shown in FIG. Return to is regulated.

The state in which the hold claw 25b abuts against the stopper piece 24a and the return of the hold lever to the hold position is restricted is maintained until the door handle 9 is opened next time.

As described above, in the first embodiment, when the lock of the full-open lock device is released and the slide door 2 is closed and slid from the full-open position, the door handle 9 needs to be opened only once. Since the lock is released and the slide can be performed, the slide door 2 can be closed and slid thereafter without operating the door handle 9, and the door handle 9 has only one type of structure. Is also excellent in operability. That is, unlike the related art, there is no need for an unnatural operation such as closing and sliding the slide door 2 while operating the door handle 9 in the direction opposite to the closing slide direction. The operability can be improved in a cost-effective structure of only one type.

(Embodiment 2) Next, Embodiment 2 corresponding to the third aspect of the present invention will be described. In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will be omitted. Only the differences from the first embodiment will be described.

FIG. 5 is a perspective view showing a fully-open lock device for a sliding door according to the second embodiment. The major difference from the first embodiment is that the lower roller bracket 42 is attached to the neck as in the first embodiment. It is not a swing type, but is constituted by a single bracket whose base end is fixed to the slide door 2.

The lower guide rail 5 has a U-shaped cross section as shown in the figure, and has an opening directed downward, and an input projection 16 is provided at the rear end. The striker 14 is arranged at the same height as the input projection 16 and is fixed to the vehicle body via the bracket 43.

At the tip of the roller bracket 42,
A lower roller 7 is provided, and the lower roller 7
One radial roller 7a and one thrust roller 7b
It is composed of

On the upper surface of the lower roller bracket 42, a latch 21 is provided so as to be rotatable about a pin 21a. The latch 21 is rotated clockwise by biasing means (not shown) in the same manner as in the first embodiment.
That is, it is urged to rotate from the latch position toward the unlatch position.

At a position near the latch 21, a locking plate 44 is provided rotatably about a pin 44a.
As in the first embodiment, the urging means (not shown)
It is urged to rotate counterclockwise, that is, from the unlock position to the lock position. The state shown in the figure is a state in which the locking plate 44 is disposed at the lock position. In this position, one end restricts the rotation of the latch 21 from the latch position, and the other end stands at the other end. When the hold claw 25b of the hold lever 25 abuts on the stopper piece 44b, the rotation of the hold lever 25 to the hold position is restricted. The hold lever 25 is rotationally biased in a counterclockwise direction, that is, in a direction from the unhold position to the hold position, by a biasing unit (not shown).

The wire 27 is connected to the locking plate 44. When the door handle 9 (not shown) is opened, the locking plate 44 is rotated to the unlock position.

Therefore, in the second embodiment, when the slide door 2 is slid to the fully open position, the latch 21 is engaged with the locking plate 44 and held at the latch position as shown in FIG. Is held in the fully open position.

When the slide door 2 is closed from this state, the door handle 9 is opened once. By this opening operation, the locking plate 44 is pulled by the wire 27 and is turned to the unlock position.
The stopper piece 25b against which the hold claw 25b has abutted
Moves to release the abutting state, and the hold lever 25 rotates counterclockwise to rotate to the hold position. Therefore, even if the locking plate 44 attempts to return to the locked position by the urging force of the urging means after the opening operation of the door handle 9 is completed, the locking claw 25b is engaged halfway and cannot return to the locked position. Accordingly, the slide door 2 can be slid in the closing direction without the restriction force acting on the latch 21.

As described above, in the second embodiment, the lower roller bracket 42 does not have a swing structure, so that the relative positional relationship between the door handle 9 and the locking plate 44 can be kept constant. Can be linked directly. For this reason, the structure can be simplified by adopting a structure in which the release lever 26 of the first embodiment is eliminated and the wire 27 is directly connected to the locking plate 44.

[0041]

As described above, in the slide door fully open lock device according to the present invention, the locking plate for restricting the rotation of the latch is linked directly or indirectly to the door handle, and the locking plate is further locked. A hold lever is provided to prevent the plate from rotating from the lock position to the unlock position, which does not restrict the rotation of the latch to the unlatched position, and the hold lever is provided on the guide rail immediately before the slide door is fully opened. The lock plate is configured to rotate to an unhold position where the lock plate is not held at the unlock position, and the lock plate has a lock lever that rotates from the unlock position to the hold position when the lock plate is disposed at the lock position. With a stopper piece that regulates the sliding door from the fully open position. When the door handle is closed, the locking plate is held in the unlocked position by the hold lever if the opening operation of the door handle is performed once, and the engagement between the latch and the striker can be released. There is no need to slide the sliding door while opening the door, and even if a heavy load is applied to the latch such as on a downhill, the operation against the load can be performed independently. The advantage is that operability can be improved while using a cost-effective means for unlocking the full-open lock device using the door handle. Further, in the invention according to claim 3, since the lower plate consisting of only the bracket fixed to the slide door is used and the locking plate is directly linked to the door handle, the number of parts is reduced and the structure is reduced. The effect that simplification can be achieved is obtained. According to the fourth and fifth aspects of the present invention, the lower roller bracket has a swinging structure including the first bracket and the second bracket, and the locking plate is operated by a release lever interlocking with the door handle.
With a swing structure that can reduce the resistance when the sliding door slides, the locking plate can be linked to the door handle without interfering with the operation of the device even if the bracket swings. Can be

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fully-open lock device for a slide door according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a vehicle to which the embodiment is applied.

FIG. 3 is a sectional view taken along line S3-S3 of FIG.

FIG. 4 is an explanatory diagram showing an operation of the first embodiment.

FIG. 5 is a perspective view showing a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Slide door 3 Opening 4 Upper guide rail 5 Lower guide rail 6 Rear guide rail 7 Lower roller 7a Radial roller 7b Thrust roller 8 Center pillar 9 Door handle 11 Upper roller bracket 12 Lower roller bracket 12a Vertical piece 12b Horizontal piece 12c Pin 12d parallel plate 12e parallel plate 13 rear roller bracket 14 striker 15 stopper 16 input projection 17 detent stopper 21 latch 21a pin 21b engagement hole 21c return spring 21d engagement piece 22 first locking plate 22a pin 22b notch 22c engagement Pin 23 Return spring 24 Second locking plate 24a Stopper piece 25 Hold lever 25a Pin 25b Hold claw 25c Sensor roller 25d Turn spring 26 Release lever 26a Pin 26b Return spring 27 Wire 42 Lower roller bracket 43 Bracket 44 Locking plate 44a Pin 44b Stopper piece 121 First bracket 122 Second bracket 123 Stopper arm

Claims (5)

[Claims] 1. A slide door for opening and closing an opening formed in a side surface of a vehicle body is slidably supported by a guide rail, and the slide door is slid to a fully open position where the opening is fully opened. A latch is provided which is sometimes engaged with a striker fixed to the vehicle body to regulate the sliding of the slide door, and the latch is an unlatch for releasing the engagement between the striker and the latch position where the striker is engaged. And is pivotally biased in the direction of the unlatch position by a biasing means, and is engaged with the latch at the latch position at a position near the latch of the slide door. A locking plate for restricting rotation of the latch in the direction of the unlatching position. The locking plate engages with the latch. A door lock provided on the side surface of the slide door, while being rotatably supported by a lock position that is not engaged with the lock position and an unlock position that is not engaged with the slide door, being urged by the urging means to rotate in the direction of the lock position. In conjunction with the door handle for release,
It is configured to be pivoted to the unlock position at the time of a door handle unlocking operation, and to a position near the locking plate of the slide door and movable near the guide rail when the slide door slides, A hold lever is rotatably supported, and the hold lever is provided with a hold claw that engages with the locking plate and regulates the return of the locking plate from the unlock position to the lock position. It is rotatably provided in a range between a hold position for engaging with the locking plate and restricting return to the lock position and a hold position for preventing the hold claw from engaging with the locking plate and restricting return to the lock position. The urging means is further urged to rotate in the direction of the hold position by the urging means, Only when the locking plate is in the lock position, the stopper is provided with a stopper piece that restricts the hold lever from rotating from the unlock position to the hold position by abutting the hold claw of the hold lever. The guide rail is provided with an input convex portion that collides with the hold lever at a position slightly closer to the closing direction than the fully open position of the slide door and rotates the hold lever from the hold position to the unhold position. Fully-open lock device for a slide door. 2. The input projection and the striker are provided at a rear end of a lower guide rail extending along a lower edge of the opening, and the latch, a locking plate, and a hold lever are provided.
2. The sliding door full-open lock device according to claim 1, wherein a lower roller bracket mounted on the slide door and supporting a roller for rolling the lower guide rail is provided. 3. The slide according to claim 2, wherein the lower roller bracket comprises only a bracket fixed to a slide door, and wherein the locking plate is connected to a wire interlocking with the door handle. Fully open door lock device. 4. The lower roller bracket includes a first bracket fixed to a vehicle body, and a second bracket mounted on the first bracket so as to be rotatable in a horizontal direction and supporting the roller. The latch, the locking plate, and the hold lever are supported by the first bracket, and the second bracket has a release lever that can rotate the locking plate from a locked position to an unlocked position. The release lever is connected to a wire interlocking with the door handle lever, and the release lever pivots in conjunction with a door unlock operation of the door handle to move the locking plate from the lock position to the unlock position. 3. The sliding door according to claim 2, wherein the sliding door is configured to be moved. Open lock device. 5. The full-open lock device for a slide door according to claim 4, wherein the latch and the hold lever are arranged at different heights, and wherein the locking plate engages with the first locking plate. A second locking plate integrally formed coaxially with one locking plate and arranged to be engageable with the hold lever and provided with the stopper piece; and the release lever is provided with a first locking plate. And a lock device for fully opening the slide door.